29 MW hot-water boiler

  This boiler has 3 vertical steam drums and a chain-grate stoker. The boiler body is composed of arch tube-sheet, threaded smoke pipe, Ba Zi smoke flue and catchment . the designed available coal type should be II type bitumite. The boiler uses 8.5 meter chain-grate stoker, which reaches 65% coverage, and 12 back rake ; Air comes from both sides of the stoker in order to guarantee the coal layer could receive even ventilation. The blower pushes cool air into the air preheating machine , then the preheated air will ,through the hot air flue on both sides of the boiler and the air inlet pipes of the stoker , be divided to 2 flows , and separately ascend to the boiler furnace
The original flue gas emission concentration could satisfy the national standard for the reason that the boiler has installed the threaded smoke pipe.
This boiler has strong power, 10% override ability, high thermal efficiency, its operation efficiency could reach 81% so that it is a minimal polluted ,high effective and energy conserved product.